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Thread: More than 2 screens on Ubuntu 18.04

  1. #1
    Join Date
    Sep 2018
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    3

    More than 2 screens on Ubuntu 18.04

    I want to connect 3 screens on my ubuntu computer, i normally know how you can do it but the problem is that only 2 screens are recognized.
    I have tried with monitor setup in gnome (at NL 'schermen'), and they are only 2 screens seen. I have also tried with 'arandr' but same problem, only 2 screens.
    Only with Nvidia-settings i see the 3 screens, but nvidia-settings is not working perfectly anymore. When you setup with nvidia-settings and save it to /etc/X11/xorg.conf i have a black screen on start up and no other visual. When i reboot, the same problem, only when i remove the xorg.conf and restart the computer he start perfect but only with 2 screens. It looks that you can't make xorg.conf or configure xorg.conf anymore. Earlier i do it with xorg.conf (with nvidia-settings) and it works perfect, now with the newer ubuntu versions it only works with randr.

    The configuration:
    AMD Ryzen 2400G
    Asus Prime B350 plus mainboard
    12 Gb Kingston ram
    2x Nvidia geforce N710 grafic cards
    2x 22 inch screens (one on the HDMI output and one on the VGA D-Sub output)
    and one 27 inch screen (ont the VGA D-Sub output of the other card)

  2. #2
    Join Date
    Jul 2008
    Location
    The Left Coast of the USA
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    Distro
    Kubuntu

    Re: More than 2 screens on Ubuntu 18.04

    Hello!

    Which monitor is not working?
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  3. #3
    Join Date
    Sep 2018
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    3

    Re: More than 2 screens on Ubuntu 18.04

    This one on the other card
    "and one 27 inch screen (ont the VGA D-Sub output of the other card)"

  4. #4
    Join Date
    Jul 2008
    Location
    The Left Coast of the USA
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    Distro
    Kubuntu

    Re: More than 2 screens on Ubuntu 18.04

    Have you swapped the cables around to eliminate hardware as the fault?
    Please read The Forum Rules and The Forum Posting Guidelines

    A thing discovered and kept to oneself must be discovered time and again by others. A thing discovered and shared with others need be discovered only the once.
    This universe is crazy. I'm going back to my own.

  5. #5
    Join Date
    Sep 2018
    Beans
    3

    Re: More than 2 screens on Ubuntu 18.04

    Yes.
    But when you open "nvidia-settings" it see 3 screens, but you can not configure anymore with nvidia-settings. 'Screens' in ubuntu doesn't recognize 3 screens, only these on the first card.

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